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20248833 = 3113791619
BaseRepresentation
bin100110100111…
…1100100000001
31102002202011210
41031033210001
520140430313
62002000333
7334053333
oct115174401
942082153
1020248833
1110480280
1269460a9
13426c777
142991453
151b9e9c3
hex134f901

20248833 has 16 divisors (see below), whose sum is σ = 29548800. Its totient is φ = 12232080.

The previous prime is 20248831. The next prime is 20248841. The reversal of 20248833 is 33884202.

It is not a de Polignac number, because 20248833 - 21 = 20248831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20248833.

It is not an unprimeable number, because it can be changed into a prime (20248831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11698 + ... + 13316.

It is an arithmetic number, because the mean of its divisors is an integer number (1846800).

Almost surely, 220248833 is an apocalyptic number.

It is an amenable number.

20248833 is a deficient number, since it is larger than the sum of its proper divisors (9299967).

20248833 is a wasteful number, since it uses less digits than its factorization.

20248833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 20248833 is about 4499.8703314651. The cubic root of 20248833 is about 272.5628528249.

The spelling of 20248833 in words is "twenty million, two hundred forty-eight thousand, eight hundred thirty-three".

Divisors: 1 3 11 33 379 1137 1619 4169 4857 12507 17809 53427 613601 1840803 6749611 20248833